How to delete an unacked subject message?

[AhmedAbouelkher]

hi,
I want to delete an unacked messages by id for example from the published to the subject.

For example, when the service user performs a destructive queue action, which will need to cancel the already published message.

[derekcollison]

We only do de-dupe via MsgID at this time. Referencing messages is by stream sequence or subjects. Once a sequence has been established you can delete the message directly from the stream.

[AhmedAbouelkher]

Where can I get MsgID and what is stream sequence ?

[AhmedAbouelkher]

Where can I get MsgID and what is stream sequence ?

Ok, currently I nearly know what is stream sequence from here

But how to get it from the go client?

[derekcollison]

Its part of the PubAck when you call js.Publish()..

[derekcollison]

https://github.com/nats-io/nats.go/blob/main/js.go#L421
https://github.com/nats-io/nats.go/blob/main/js.go#L36

[AhmedAbouelkher]

Where can I get MsgID and what is stream sequence?

Ok, currently I nearly know what is stream sequence from here

But how to get it from the go client?

I could find the message sequence here

type PubAck struct {
	Stream    string `json:"stream"`
	Sequence  uint64 `json:"seq"`
	Duplicate bool   `json:"duplicate,omitempty"`
	Domain    string `json:"domain,omitempty"`
}